Liquid suction tube structure, plastic liquid tank and vehicle

Abstract

The utility model relates to vehicle technical field, specifically disclose liquid suction tube structure, plastic liquid tank and vehicle, the liquid suction tube structure includes liquid suction tube and support piece, liquid suction tube is configured as from the oil hole of the top wall of the tank body of plastic liquid tank and is inserted into the tank body and is fixed with the top wall of tank body, and the bottom wall interval of liquid suction tube and tank body is arranged, support piece is configured as setting up in the bottom wall of tank body, and liquid suction tube is fixed with support piece, because liquid suction tube and the top wall of tank body are fixed, support piece sets up in the bottom wall of tank body, and liquid suction tube is fixed with support piece, and then realize the support pipe and liquid suction tube jointly to the top wall and bottom wall of tank body play the supporting role, when the plastic liquid tank with the liquid suction tube structure is set up long -time work, the top wall of tank body is not easy to deformation and collapse, and then will not cause the clearance reduction of liquid suction tube from the bottom wall of tank body, avoid liquid suction resistance increase, keep liquid suction smooth.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a liquid suction tube structure, a plastic liquid tank, and a vehicle. Background Technology

[0002] With the development of automotive lightweighting technology, plastic fuel tanks have become the preferred solution in the passenger vehicle sector due to their advantages such as light weight (30%-50% lighter than metal fuel tanks), strong corrosion resistance, and high design flexibility. According to statistics from the International Automobile Manufacturers Association, the global penetration rate of plastic fuel tanks in new cars reached 78% in 2024.

[0003] like Figure 1 As shown, in existing plastic liquid tanks, a suction tube is typically inserted directly into the top wall of the tank, and then the gap between the suction tube and the tank is sealed. However, due to the weak strength of the top wall of the plastic liquid tank and the tendency for negative pressure to form inside the tank, the top wall surface is prone to collapse and deformation. This results in a smaller gap between the suction port and the bottom wall of the tank, leading to high suction resistance and difficulty in suctioning oil.

[0004] Therefore, a suction tube structure is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a suction pipe structure, a plastic liquid tank, and a vehicle to solve the problem in the related technology that the top wall structure of the plastic liquid tank has poor strength and is prone to collapse, which in turn causes the gap between the suction pipe and the bottom wall of the tank to become smaller, resulting in high oil suction resistance and difficulty in oil suction.

[0006] On one hand, this utility model provides a liquid suction tube structure, which is installed in the body of a plastic liquid tank. The liquid suction tube structure includes:

[0007] A suction tube is configured to extend into the box from an oil hole on the top wall of the box and be fixed to the top wall of the box; the suction tube is spaced apart from the bottom wall of the box.

[0008] A support member is configured to be disposed on the bottom wall of the housing, and the liquid suction tube is fixedly connected to the support member.

[0009] As a preferred technical solution for the liquid suction tube structure, one end of the liquid suction tube is located outside the box and the other end is located inside the box;

[0010] The support includes a support tube and a base plate. One end of the support tube is fixedly connected to and communicates with the other end of the suction tube. The other end of the support tube is fixedly connected to the base plate. The base plate is located on the bottom wall of the housing. An oil inlet is provided on the peripheral wall of the support tube.

[0011] As a preferred technical solution for the suction tube structure, the support includes a connecting plate and two upright plates. The connecting plate is sleeved on and connected to the suction tube. One end of the upright plate is fixed to the connecting plate, and the other end of the upright plate is configured to abut against the bottom wall of the box. The two upright plates are located on both sides of the suction tube.

[0012] As a preferred technical solution for the liquid suction tube structure, the liquid suction tube includes a tube body and a connector, with one end of the tube body fixedly connected to the connector;

[0013] The connector is inserted into the oil hole and screwed to the top wall of the box, and the other end of the pipe is screwed to the connecting plate.

[0014] As a preferred technical solution for the suction tube structure, it also includes a fixing member, which includes a mounting plate. The mounting plate is fixedly connected to the portion of the suction tube located outside the box body. The mounting plate is configured to be attached to the top wall of the box body and fixedly connected to the top wall of the box body.

[0015] As a preferred technical solution for the suction tube structure, the mounting plate is provided with a plurality of mounting holes, which are spaced apart around the circumference of the mounting plate;

[0016] The fastener also includes multiple bolts, each bolt corresponding to a different mounting hole. The bolts pass through the corresponding mounting holes and are screwed to the top wall of the housing.

[0017] As a preferred technical solution for the suction tube structure, the mounting plate has a perforation at its center, and the suction tube passes through the perforation and is fixedly connected to the mounting plate.

[0018] As a preferred technical solution for the suction tube structure, the suction tube includes a tube body and a connector. The connector passes through the perforation and is fixedly connected to the mounting plate. The tube body is inserted into the connector and is fixedly connected to the connector.

[0019] On the other hand, this utility model provides a plastic liquid tank, including the tank body and the liquid suction tube structure in any of the above embodiments, wherein the top wall of the tank body is provided with reinforcing ribs.

[0020] On the other hand, this utility model provides a vehicle that includes the plastic liquid tank in any of the above-mentioned solutions.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model provides a liquid suction pipe structure, a plastic liquid tank, and a vehicle. The liquid suction pipe structure includes a liquid suction pipe and a support member. The liquid suction pipe is configured to extend into the plastic liquid tank from an oil hole on the top wall of the tank body and is fixedly connected to the top wall of the tank body. The liquid suction pipe is spaced apart from the bottom wall of the tank body. The support member is configured to be located on the bottom wall of the tank body, and the liquid suction pipe is fixedly connected to the support member. Because the liquid suction pipe is fixedly connected to the top wall of the tank body, and the support member is located on the bottom wall of the tank body, the liquid suction pipe and the support member are fixedly connected, thus achieving the joint support function of the support pipe and the liquid suction pipe for the top and bottom walls of the tank body. When the plastic liquid tank with this liquid suction pipe structure is in operation, the top wall of the tank body is not prone to deformation and collapse, thereby preventing the gap between the liquid suction pipe and the bottom wall of the tank body from decreasing, avoiding increased liquid suction resistance, and maintaining smooth liquid suction. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a plastic liquid tank in the prior art;

[0024] Figure 2 This is a schematic diagram of the structure of the plastic liquid tank in Embodiment 1 of this utility model;

[0025] Figure 3 This is a schematic diagram of the suction tube structure in Embodiment 2 of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the plastic liquid tank in Embodiment 3 of this utility model;

[0027] Figure 5 This is a schematic diagram of the suction tube structure in Embodiment 3 of this utility model.

[0028] In the picture:

[0029] 1. Suction tube; 11. Tube body; 12. Connector;

[0030] 2. Fasteners; 21. Mounting plate; 212. Mounting holes; 22. Bolts;

[0031] 3. Support components; 31. Connecting plate; 32. Vertical plate; 33. Support pipe; 331. Oil inlet; 34. Base plate;

[0032] 4. Box body; 41. Top wall; 411. Oil hole; 412. Reinforcing rib; 42. Bottom wall. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] Example 1

[0038] During long-term use, the plastic liquid tank experiences deformation due to the pressure difference between the inside and outside, as well as its own weight. This causes the top wall 41 of the tank body 4 to collapse, resulting in the suction pipe 1, which is fixed to the top wall 41, moving closer to the bottom wall 42. This increases the suction resistance and leads to poor suction. To solve this problem, such as... Figure 2As shown, this embodiment provides a suction tube structure, which includes a suction tube 1 and a support member 3. The suction tube 1 is configured to extend into the tank 4 from the oil hole 411 of the top wall 41 of the plastic liquid tank and is fixedly connected to the top wall 41 of the tank 4. The suction tube 1 is spaced apart from the bottom wall 42 of the tank 4. The support member 3 is configured to be disposed on the bottom wall 42 of the tank 4, and the suction tube 1 is fixedly connected to the support member 3. Since the suction pipe 1 is fixedly connected to the top wall 41 of the box body 4, and the support member 3 is set on the bottom wall 42 of the box body 4, the suction pipe 1 is fixedly connected to the support member 3. Thus, the support pipe 33 and the suction pipe 1 together support the top wall 41 and the bottom wall 42 of the box body 4. When the plastic liquid tank with this suction pipe structure is working, the top wall 41 of the box body 4 is not easy to deform or collapse, thus preventing the gap between the suction pipe 1 and the bottom wall 42 of the box body 4 from decreasing, avoiding the increase of suction resistance, and maintaining smooth suction.

[0039] Optionally, the support member 3 includes a connecting plate 31 and two upright plates 32. The connecting plate 31 is sleeved on and connected to the suction tube 1. One end of the upright plate 32 is fixedly connected to the connecting plate 31, and the other end of the upright plate 32 is configured to abut against the bottom wall 42 of the housing 4. The two upright plates 32 are located on both sides of the suction tube 1. In this embodiment, this arrangement, without affecting the suction resistance and smoothness of the suction tube 1, allows the connecting plate 31 to connect the upright plates 32 and the suction tube 1, while the upright plates 32 provide support. The connecting plate 31 and the two upright plates 32 are integrally formed parts.

[0040] Optionally, the suction tube 1 includes a tube body 11 and a connector 12. One end of the tube body 11 is fixedly connected to the connector 12. The connector 12 is inserted into the oil hole 411 and screwed to the top wall 41 of the housing 4. The other end of the tube body 11 is screwed to the connecting plate 31. In this embodiment, the outer peripheral wall of the connector 12 and the other end of the tube body 11 are both provided with external threads, and the inner peripheral wall of the oil hole 411 and the inner peripheral wall of the through hole on the connecting plate 31 are both provided with internal threads. When the connector 12 is screwed to the top wall 41 of the housing 4, the other end of the tube body 11 is screwed to the connecting plate 31, thereby realizing that the suction tube 1 and the support member 3 jointly support the top wall 41 and the bottom wall 42 of the housing 4.

[0041] On the other hand, this embodiment provides a plastic liquid tank, including a tank body 4 and a suction pipe structure as described in any of the above solutions. The top wall 41 of the tank body 4 is provided with reinforcing ribs 412. In this embodiment, to further prevent the top wall 41 of the tank body 4 from collapsing, reinforcing ribs 412 are provided on the top wall 41 of the tank body 4 to improve the overall strength of the top wall 41 of the tank body 4.

[0042] Optionally, the reinforcing rib 412 can be a protrusion structure protruding from the top wall 41 of the housing 4, or in other embodiments, it can be a groove structure recessed from the top wall 41 of the housing 4.

[0043] Optionally, the plastic liquid tank is a fuel tank; in other embodiments, it can also be a urea tank or a water tank, etc.

[0044] Furthermore, this embodiment provides a vehicle that includes the plastic liquid tank from any of the above-described solutions.

[0045] Example 2

[0046] like Figure 3 As shown, this embodiment is basically the same as Embodiment 1, except for the structure of the support member 3. Optionally, the support member 3 includes a support tube 33 and a base plate 34. One end of the support tube 33 is fixedly connected to the other end of the tube body 11 and communicates with the liquid suction tube 1. The other end of the support tube 33 is fixedly connected to the base plate 34. The base plate 34 is located on the bottom wall 42 of the box body 4. An oil inlet 331 is provided on the peripheral wall of the support tube 33. In this embodiment, the liquid in the box body 4 enters the support tube 33 through the oil inlet 331, and then enters the tube body 11 through the support tube 33.

[0047] Optionally, multiple oil inlets 331 are provided, and the multiple oil inlets 331 are arranged at circumferential intervals around the support pipe 33.

[0048] Optionally, the support tube 33 and the tube body 11 are connected by snap-fit, screw-fit, or welding. In other embodiments, the support tube 33 and the tube body 11 may also be integrally formed parts.

[0049] Example 3

[0050] like Figures 3-5 As shown, this embodiment is basically the same as Embodiment 1 or Embodiment 2, the only difference being the fixing method between the suction tube 1 and the top wall 41 of the box 4. Optionally, the suction tube structure also includes a fixing member 2, which includes a mounting plate 21. The mounting plate 21 is fixedly connected to the suction tube 1 and is configured to be attached to and fixedly connected to the top wall 41 of the box 4. Since the mounting plate 21 is attached to and fixedly connected to the top wall 41 of the box 4, the strength of the top wall 41 of the box 4 is improved. When the plastic liquid box with this suction tube structure is in operation, the top wall 41 of the box 4 is less prone to deformation and collapse under the support of the mounting plate 21, thus preventing the gap between the suction tube 1 and the bottom wall 42 of the box 4 from decreasing, avoiding increased suction resistance, and maintaining smooth suction.

[0051] Optionally, the mounting plate 21 has a perforation at its center, through which the suction tube 1 passes and is fixedly connected to the mounting plate 21. In this embodiment, since the top wall 41 of the plastic tank in the area covered by the mounting plate 21 is not easily deformed, the suction tube 1 is placed on the top wall 41 of the plastic tank in the area covered by the mounting plate 21, preferably at the center of the mounting plate 21.

[0052] Optionally, the connector 12 passes through the perforation and is fixedly connected to the mounting plate 21, while the tube body 11 is inserted into the connector 12 and fixedly connected to it. In this embodiment, the connector 12 passes through the perforation and is interference-fitted with the mounting plate 21, thereby sealing the gap between the mounting plate 21 and the connector 12. Simultaneously, to ensure the stability of the fixed connection between the connector 12 and the mounting plate 21, the connector 12 and the mounting plate 21 are clamped, screwed, or welded together. One end of the tube body 11 is interference-fitted into the connector 12.

[0053] Optionally, the mounting plate 21 is provided with a plurality of mounting holes 212, which are spaced apart around the circumference of the mounting plate 21. The fastener 2 also includes a plurality of bolts 22, which correspond one-to-one with the plurality of mounting holes 212. The bolts 22 pass through the corresponding mounting holes 212 and are screwed to the top wall 41 of the housing 4. In this embodiment, the top wall 41 of the housing 4 is provided with threaded blind holes at positions opposite to the mounting holes 212. The bolts 22 pass through the mounting holes 212 and extend into the corresponding threaded blind holes to achieve the screwing connection between the bolts 22 and the top wall 41 of the housing 4, thereby fixing the mounting plate 21 to the top wall 41 of the housing 4.

[0054] Optionally, the fixing member 2 also includes a sealing ring, which is sleeved on the suction tube 1 and located outside the oil hole 411. The mounting plate 21 presses the sealing ring tightly against the top wall 41 of the housing 4. In this embodiment, the sealing ring can achieve a seal between the mounting plate 21 and the top wall 41 of the housing 4, thereby preventing oil from leaking out of the oil hole 411 and flowing out from the gap between the mounting plate 21 and the top wall 41 of the housing 4.

[0055] Optionally, the sealing ring has a W-shaped cross-section along the radial direction. This arrangement can further improve the sealing between the mounting plate 21 and the top wall 41 of the housing 4. In other embodiments, sealant can also be filled between the mounting plate 21 and the top wall 41 of the housing 4.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A suction tube structure, installed in the body (4) of a plastic liquid tank, characterized in that, include: A suction tube (1) is configured to extend into the box (4) from the oil hole (411) of the top wall (41) of the box (4) and be fixed to the top wall (41) of the box (4). The suction tube (1) is spaced apart from the bottom wall (42) of the box (4). A support member (3) is configured to be disposed on the bottom wall (42) of the housing (4), and the suction tube (1) is fixedly connected to the support member (3).

2. The suction tube structure according to claim 1, characterized in that, One end of the suction tube (1) is located outside the box (4), and the other end is located inside the box (4); The support member (3) includes a support tube (33) and a base plate (34). One end of the support tube (33) is fixedly connected to the other end of the suction tube (1) and communicates with the suction tube (1). The other end of the support tube (33) is fixedly connected to the base plate (34). The base plate (34) is located on the bottom wall (42) of the box body (4). The peripheral wall of the support tube (33) is provided with an oil inlet (331).

3. The suction tube structure according to claim 1, characterized in that, The support member (3) includes a connecting plate (31) and two upright plates (32). The connecting plate (31) is sleeved on the suction tube (1) and connected to the suction tube (1). One end of the upright plate (32) is fixed to the connecting plate (31), and the other end of the upright plate (32) is configured to abut against the bottom wall (42) of the box body (4). The two upright plates (32) are located on both sides of the suction tube (1).

4. The suction tube structure according to claim 3, characterized in that, The suction tube (1) includes a tube body (11) and a connector (12), one end of the tube body (11) being fixedly connected to the connector (12); The connector (12) is inserted into the oil hole (411) and screwed to the top wall (41) of the box (4), and the other end of the tube (11) is screwed to the connecting plate (31).

5. The suction tube structure according to any one of claims 1-3, characterized in that, It also includes a fastener (2), which includes a mounting plate (21) that is fixed to the portion of the suction tube (1) located outside the box (4). The mounting plate (21) is configured to be attached to the top wall (41) of the box (4) and fixed to the top wall (41) of the box (4).

6. The suction tube structure according to claim 5, characterized in that, The mounting plate (21) is provided with a plurality of mounting holes (212), which are spaced apart around the circumference of the mounting plate (21); The fastener (2) also includes a plurality of bolts (22), and the plurality of bolts (22) correspond one-to-one with the plurality of mounting holes (212). The bolts (22) pass through the corresponding mounting holes (212) and are screwed to the top wall (41) of the housing (4).

7. The suction tube structure according to claim 5, characterized in that, The mounting plate (21) has a perforation in the center, and the suction tube (1) passes through the perforation and is fixedly connected to the mounting plate (21).

8. The suction tube structure according to claim 7, characterized in that, The suction tube (1) includes a tube body (11) and a connector (12). The connector (12) is inserted through the perforation and fixedly connected to the mounting plate (21). The tube body (11) is inserted into the connector (12) and fixedly connected to the connector (12).

9. A plastic liquid tank, characterized in that, The box (4) includes the liquid suction tube structure according to any one of claims 1-8, wherein the top wall (41) of the box (4) is provided with reinforcing ribs (412).

10. A vehicle, characterized in that, Includes the plastic liquid tank as described in claim 9.

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